KR870002610A - Test method and device for control rod cluster for nuclear fuel assembly - Google Patents

Test method and device for control rod cluster for nuclear fuel assembly Download PDF

Info

Publication number
KR870002610A
KR870002610A KR1019860006360A KR860006360A KR870002610A KR 870002610 A KR870002610 A KR 870002610A KR 1019860006360 A KR1019860006360 A KR 1019860006360A KR 860006360 A KR860006360 A KR 860006360A KR 870002610 A KR870002610 A KR 870002610A
Authority
KR
South Korea
Prior art keywords
control rod
control
cluster
inspection
fuel assembly
Prior art date
Application number
KR1019860006360A
Other languages
Korean (ko)
Other versions
KR940010232B1 (en
Inventor
지브린 베르나르
꾸뚜르 로제
Original Assignee
로베르 퓌르만
프라마토메 에 꼬지마 디뜨 프라지마
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9321864&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=KR870002610(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 로베르 퓌르만, 프라마토메 에 꼬지마 디뜨 프라지마 filed Critical 로베르 퓌르만
Publication of KR870002610A publication Critical patent/KR870002610A/en
Application granted granted Critical
Publication of KR940010232B1 publication Critical patent/KR940010232B1/en

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/06—Devices or arrangements for monitoring or testing fuel or fuel elements outside the reactor core, e.g. for burn-up, for contamination
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Abstract

내용 없음No content

Description

핵연료 집합체용 제어봉 클러스터의 검사방법 및 장치Test method and device for control rod cluster for nuclear fuel assembly

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 하향 운동중의 처리 그립퍼를 안내해주는 기능을 가진 편향 날개가 끼워진 시험 장치의 개략적인 상부 입면도.3 is a schematic top elevation view of a test device fitted with a deflection vane having a function of guiding a process gripper during downward motion.

제4도는 본 발명의 실시예에 따른 장치의 상부 개략도 및 관련 구성 부품(편향기 초음파 기구 및 도시되지 않는 그 전자 소자)의 블록 다이아그램.4 is a block diagram of a top schematic view of a device according to an embodiment of the present invention and associated components (deflector ultrasound apparatus and its electronic elements not shown).

제8도는 시험장치용 제거가능한 수직 오프셋 블록의 실시예의 도면.8 is a diagram of an embodiment of a removable vertical offset block for a test apparatus.

＊도면의 주요 부분에 대한 부호의 설명＊ Explanation of symbols for main parts of drawing

10:제어봉 클러스터 12:제어봉 14:검사장치10: control rod cluster 12: control rod 14: inspection device

16:연료빌딩 24:핵연료 집합체 30:상부 지지부16: fuel building 24: fuel assembly 30: upper support

32:몸체 34:수직 오프셋 블록 35:데이타 프로세서32: body 34: vertical offset block 35: data processor

36:TV 모니터 37:비데오 테이프 레코더 39:다리36: TV monitor 37: Video tape recorder 39: Leg

42:비데오 카메라 44:받침대 46:와동 전류 코일42: video camera 44: stand 46: vortex current coil

50:수평 테이블 72:안내관 78:가로대50: horizontal table 72: information center 78: side stand

86:받침대 88:인덱싱 러그 92:거울 홀더86: stand 88: indexing rug 92: mirror holder

94:스트립 100,130:거울 106:초음파 검사 유니트94: strip 100, 130: mirror 106: ultrasonic inspection unit

108:전기 모터 116:가요성 커플링 120:지지체108: electric motor 116: flexible coupling 120: support

122:안내부재122: guide member

Claims (11)

원자로 코어속으로 그리고 코어로부터 외측으로 이동할 수 있는 예정된 정수인 n개의 평행 제어봉 클러스터의 길다란 제어봉을 검사하는 방법에 있어서, (a) n/m개의 제어봉(m은 n보다 작은 예정된 정수임)에 그 전체 길이에 걸쳐 와동 전류 검사가 동시에 가해지는 동안에 제어봉 클러스터를 제어 유니트를 통해 길이방향으로 이동해주고, (b) 클러스터가 길이방향 둘레에서 360°/m의 연속량만큼 회전되어진 후에 단계(a)를 m-1번 반복해 주고, (c) 상기 단계(a) 및 (b)동안에 나타난 의심스러운 제어봉들을 의심스러운 영역의 상세한 지도를 제공하기 위해 의심스러운 영역의 전체 축방향 길이에 걸쳐 그리고 다수의 길이방향 윤곽에 따라 차례로 각 의심스러운 제어봉의 길이방향 운동중에 하나씩 초음파식으로 검사해주는 단계들로 이루어진 것을 특징으로 하는 핵연료 집합체용 제어봉 클러스터의 검사 방법.A method of inspecting elongated control rods of n parallel control rod clusters, which is a predetermined integer capable of moving into and out of the reactor core, the method comprising: (a) n / m control rods, where m is a predetermined integer less than n; Move the control rod cluster in the longitudinal direction through the control unit during the simultaneous eddy current check over (b) step (a) after the cluster has been rotated by a continuous amount of 360 ° / m around the longitudinal direction. Repeat once and (c) the suspicious control rods presented during steps (a) and (b) above the entire axial length of the suspicious area and multiple longitudinal contours to provide a detailed map of the suspicious area. In accordance with the characterized in that consisting of the step of ultrasonically inspected one by one during the longitudinal movement of each suspicious control rod Test methods of control rod clusters for fuel assemblies. 제1항에 있어서, 상기제어봉의 하강 및 재상승 동안 한 제어봉의 전체 외주에 걸친 시각 시험을 한번에 종료하는 단계를 부가로 포함하며, 제어봉 뒤에 놓인 거울을 사용함므로써 클러스터가 하강하는 동안에는 제어봉의 전면에 대해 그리고 상승하는 그 후면에 대해 검사를 수행하는 것을 특징으로 하는 핵연료 집합체용 제어봉 클러스터의 검사방법.2. The method of claim 1, further comprising the step of ending a visual test over the entire perimeter of a control rod at one time during the lowering and re-raising of the control rod, and using the mirror behind the control rod, while the cluster is descending against the front of the control rod. And inspecting the control rod cluster for the nuclear fuel assembly, wherein the inspection is performed on the rising rear surface. 제2항에 있어서, 시각 검사를 원격 조종하기 위해 TV카메라를 사용하는 것을 특징으로 하는 핵연료 집합체용 제어봉 클러스터의 검사방법.3. The method of claim 2, wherein a television camera is used to remotely control visual inspection. 제2항에 있어서, 앞서의 와동 전류 검사중에 탐지된 의심스러운 제어봉의 시각 또는 초음파 시험이 n/m개의 다른 제어봉 세트에 대한 와동 전류 검사와 동시에 수행되는 것을 특징으로 하는 핵연료 집합체용 제어봉 클러스터의 검사방법.3. The inspection of a control rod cluster for a fuel assembly according to claim 2, wherein the visual or ultrasonic test of the suspicious control rod detected during the previous vortex current inspection is performed simultaneously with the vortex current inspection of n / m different sets of control rods. Way. 원자로의 제어를 위해 원자로 속으로 그리고 원자로부터 외측으로 수직이동할 수 있는 축에 대해 차수 4의 회전 대칭인 n개의 평행 제어봉 클러스터의 길다란 제어봉을 검사하는 방법에 있어서, (a) 상기 제어봉의 n/4개에 개별적으로 그리고 동시에 와동 전류 시험이 가해지는 동안에 상기 제어봉을 고정 제어 유니트를 통해 실질적으로 그들의 전체 길이에 걸쳐 하향으로 점진적으로 이동해주고, (b) 클러스터가 상기 축둘레에서 360°/4 만큼 회전되어진 후마다 상기 단계(a)를 3번 반복해주고, (c) 상기 단계(a) 및 (b)동안에 나타난 의심스러운 제어봉들을 의심스러운 영역의 상세한 지도를 제공하기 위해 의심스러운 영역의 전체 축방향 길이에 걸쳐 그리고 다수의 길이방향 윤곽을 따라 차례로 각 의심스러운 제어봉의 길이방향 운동중에 하나씩 초음파식으로 검사해주는 연속적인 단계들로 이루어진것을 특징으로 하는 핵연료 집합체용 제어봉 클러스터의 검사방법.A method of inspecting elongated control rods of n parallel control rod clusters of order 4 with respect to an axis capable of vertically moving into and out of the reactor for control of the reactor, the method comprising: (a) n / 4 of the control rods; While the vortex current test is applied to the dog individually and simultaneously, the control rod is gradually moved downwards through the fixed control unit substantially over their entire length, and (b) the cluster rotates 360 ° / 4 around the axis. Repeat step (a) three times after each run, and (c) the entire axial length of the suspect area to provide a detailed map of the suspect area with the suspect control rods presented during steps (a) and (b). Ultrasonically, one during the longitudinal motion of each suspicious control rod, in turn and along a plurality of longitudinal contours. A method of testing a control rod cluster for a fuel assembly, characterized in that it consists of successive steps. 원자로의 코오속으로 그리고 코어로부터 외측으로 수직 이동할 수 있는 제어봉 클러스터의 제어봉을 검사하는 장치에 있어서, 미끄럼 이동중에 제어봉에 의해 횡단되는 통로를 갖는 지지판과, 상기 지지판에 고정되며, 수직축 둘레에서 클러스터의 m개의 서로 다른 각도 위치들내에 상기 클러스터의 제어봉을 미끄럼 가능하게 받아들이기 위해 배열되는 안내수단과, 각가가 안내수단을 따른 미끄럼 이동중에 상기 제어봉에 의해 횡단되기 위해 배열되며 n이 클러스터내의 총 제어봉의 수이고 m의 배수로 되는 n/m개의 와동 전류 코일과, 상기 코일로부터의 탐지 신호들을 수용하기 위해 배열된 데이타 프로세서 수단 및 적어도 하나의 초음파 및 시각 검사 수단을 포함하며, 상기 제어봉의 수직 미끄럼 이동중 한번에 적어도 하나의 제어봉을 검사하는 수단으로 구성된 것을 특징으로 하는 핵연료 집합체용 제어봉 클러스터의 검사장치.An apparatus for inspecting a control rod of a control rod cluster that is capable of vertical movement outwards from the core and into the nose of the reactor, the apparatus comprising: a support plate having a passageway traversed by the control rod during sliding movement, the fixed plate being fixed to the support plate, guide means arranged to slidably receive the control rods of the cluster in m different angular positions, each of which is arranged to be traversed by the control rods during sliding movement along the guide means, and n is the total of the control rods in the cluster. N / m vortex current coils in number and multiples of m, and data processor means and at least one ultrasonic and visual inspection means arranged to receive detection signals from the coils, wherein the control rods are subjected to vertical sliding movement at one time. Number to inspect at least one control rod Inspection device of the control rod clusters for fuel assemblies, characterized in that configured. 제6항에 있어서, 각각의 와동 전류 코일은 차동 배치에서 새로운 제어봉을 둘러싸는 제2 코일과 연합되고, 새로운 부분을 참조하여 시험된 제어봉의 단면에서의 마모 상태에 의존하는 신호를 제공하도록 배열을 이루어주므로서, 환경적인 영향에 대해 보상해주는 것을 특징으로 하는 핵연료 집합체용 제어봉 클러스터의 검사장치.7. The arrangement of claim 6, wherein each vortex current coil is associated with a second coil surrounding the new control rod in a differential arrangement and is arranged to provide a signal dependent on the wear condition at the cross section of the control rod tested with reference to the new portion. By inspecting, the control rod cluster inspection device for a nuclear fuel assembly, characterized in that for compensation for environmental impact. 제6항에 있어서, 제어봉의 사각형 배열내에 분포되어 있는 핵연료 집합체에 사용하는 그룹들을 시험하기 위해서는 m=4개의 서로 다른 각도 위치들 내에 그룹을 수용하기 위한 장치가 제공되는 것을 특징으로 하는 핵연료 집합체용 제어봉 클러스터의 검사장치.7. A fuel assembly according to claim 6, wherein a device is provided for accommodating the group in m = 4 different angular positions for testing the groups for use in the fuel assembly distributed in a rectangular arrangement of control rods. Inspection device of control rod cluster. 제6항에 있어서, 검사 수단은 제어봉 둘레를 회전하기 위해 상기 지지판에 설치된 가동 소자상에 장착되는 초음파 집중 센서와, 제어봉의 완정한 표시를 얻기 위해 검사될 제어봉 둘레에서 가동 소자를 회전시키기 위한 수단을 포함하는 것을 특징으로 하는 핵연료 집합체용 제어봉 클러스터의 검사장치.7. The apparatus according to claim 6, wherein the inspection means comprises an ultrasonic concentrator sensor mounted on a movable element mounted to the support plate for rotating the control rod, and means for rotating the movable element around the control rod to be inspected to obtain a complete indication of the control rod. Inspection device of the control rod cluster for a nuclear fuel assembly comprising a. 제9항에 있어서, 상기 센서는 제어봉의 축에 평행한 감지축을 가지며, 상기 검사 수단은 전송된 초음파 빔이 제어봉쪽을 향하고, 반사된 초음파 빔이 센서쪽을 향하도록 해주는 수단을 부가로 포함하는 것을 특징으로 하는 핵연료 집합체용 제어봉 클러스터의 검사장치.10. The sensor of claim 9, wherein the sensor has a sensing axis parallel to the axis of the control rod, wherein the inspection means further comprises means for directing the transmitted ultrasonic beam towards the control rod and the reflected ultrasonic beam towards the sensor. Inspection device of the control rod cluster for a nuclear fuel assembly, characterized in that. 제6항에 있어서, 검사 수단은 시험될 제어봉을 위한 통로와 클러스터내의 상기 제어봉중 특정 하나의 검사에각각 대응하는 다수의 위치들중 어느 하나에 상기 검사 수단을 수용하기 위한 수단이 형성된 지지체에 의해 휴대된 카메라를 포함하는것을 특징으로 하는 핵연료 집합체용 제어봉 클러스터의 검사장치.7. The inspection apparatus of claim 6, wherein the inspection means is provided by a support formed with a means for receiving the inspection means in any one of a passageway for the control rod to be tested and a plurality of positions respectively corresponding to the inspection of a particular one of the control rods in the cluster. Inspection device for the control rod cluster for a nuclear fuel assembly, characterized in that it comprises a portable camera. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019860006360A 1985-08-01 1986-08-01 Prcess & device for inspecting control rod clusters for nuclear fuel assemblies KR940010232B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR11781 1985-08-01
FR85-11781 1985-08-01
FR8511781A FR2585869B1 (en) 1985-08-01 1985-08-01 METHOD AND APPARATUS FOR MONITORING CLUSTER PENCILS FOR NUCLEAR FUEL ASSEMBLY.

Publications (2)

Publication Number Publication Date
KR870002610A true KR870002610A (en) 1987-03-31
KR940010232B1 KR940010232B1 (en) 1994-10-22

Family

ID=9321864

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860006360A KR940010232B1 (en) 1985-08-01 1986-08-01 Prcess & device for inspecting control rod clusters for nuclear fuel assemblies

Country Status (9)

Country Link
US (1) US4741878A (en)
EP (1) EP0213028B2 (en)
JP (1) JPH06105312B2 (en)
KR (1) KR940010232B1 (en)
CA (1) CA1266323A (en)
DE (1) DE3665374D1 (en)
ES (1) ES2002721A6 (en)
FR (1) FR2585869B1 (en)
ZA (1) ZA865518B (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4818470A (en) * 1987-08-31 1989-04-04 General Electric Company Apparatus for the ultrasonic examination of shroud hold down bolts
US4862079A (en) * 1987-11-16 1989-08-29 Westinghouse Electric Corp. Magnetic method and apparatus for measuring and locating wear of control rods in nuclear reactors
FR2634049B1 (en) * 1988-07-06 1991-05-24 Electricite De France METHOD AND APPARATUS FOR IDENTIFYING THE NEUTRON ABSORBENT PENCIL OF A NUCLEAR REACTOR
US5066452A (en) * 1989-07-24 1991-11-19 The Babcock & Wilcox Company Ultrasonic profilometry system for control rod wear
JPH03123891A (en) * 1989-10-06 1991-05-27 Toshiba Corp Automatic fuel inspecting device
FR2663115B1 (en) * 1990-06-08 1994-04-15 Framatome METHOD AND DEVICE FOR CONTROLLING THE THICKNESS AND THE COHESION OF THE INTERFACE OF A DUPLEX TUBE.
US5235855A (en) * 1991-03-25 1993-08-17 Westinghouse Electric Corp. Rod positioning apparatus
US5215706A (en) * 1991-06-05 1993-06-01 Siemens Power Corporation Method and apparatus for ultrasonic testing of nuclear fuel rods employing an alignment guide
FR2694836B1 (en) * 1992-08-11 1994-11-10 Framatome Sa Device for controlling the guide elements of a guide tube of the upper internal equipment of a pressurized water nuclear reactor.
FR2700059B1 (en) * 1992-12-28 1995-03-31 Framatome Sa Device and method for controlling the internal surface of a tubular part.
US5418823A (en) * 1994-01-04 1995-05-23 General Electric Company Combined ultrasonic and eddy-current method and apparatus for non-destructive testing of tubular objects to determine thickness of metallic linings or coatings
DE19526565C2 (en) * 1995-07-20 2003-09-25 Framatome Anp Gmbh Device for checking a rod, in particular a control rod for a nuclear reactor
FR2739180B1 (en) * 1995-09-27 1998-09-04 Framatome Sa METHOD AND DEVICE FOR MEASURING AT LEAST ONE CHARACTERISTIC LENGTH ON A FUEL PENCIL ARRANGED AT THE PERIPHERY OF A NUCLEAR FUEL ASSEMBLY
FR2743184B1 (en) * 1995-12-29 1998-03-06 Framatome Sa DEVICE AND METHOD FOR CONTROLLING PENCILS OF A CONTROL CLUSTER FOR A NUCLEAR REACTOR
FR2743148B1 (en) * 1995-12-29 1998-02-27 Framatome Sa DEVICE AND METHOD FOR MONITORING TUBES BY EDGE CURRENT
US6344739B1 (en) 1999-02-12 2002-02-05 R/D Tech Inc. Eddy current probe with multi-use coils and compact configuration
US8903033B2 (en) 2008-01-09 2014-12-02 Analysis and Measurement Service Corporation High resolution digital rod position indication system for nuclear power plants
TW201003672A (en) * 2008-06-09 2010-01-16 Westinghouse Electric Sweden Method comprising measurement on fuel channels of fuel assemblies for nuclear boiling water reactors
US8599988B2 (en) * 2010-03-24 2013-12-03 Westinghouse Electric Company Llc Control rod transfer device
FR2979741B1 (en) * 2011-09-02 2017-03-31 Areva Np EXAMINATION DEVICE FOR THE EXAMINATION OF NUCLEAR REACTOR COMPONENTS
WO2018232508A1 (en) * 2017-06-23 2018-12-27 Candu Energy Inc. Inspection tool and method for nuclear reactor fuel channel assembly
CN110455182B (en) * 2019-07-23 2021-02-09 中广核检测技术有限公司 Method for measuring abrasion loss of control rod guide card based on image recognition technology

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2298859A1 (en) * 1975-01-22 1976-08-20 Framatome Sa APPARATUS AND INSTALLATION FOR THE EXAMINATION OF FUEL BARS OF A NUCLEAR REACTOR
FR2304149A1 (en) * 1975-03-14 1976-10-08 Framatome Sa METHOD AND DEVICE FOR EXAMINING EXTENSIONS OF A NUCLEAR REACTOR
US4197652A (en) * 1978-04-27 1980-04-15 General Electric Company Plane of reference device
DE2844747A1 (en) * 1978-10-13 1980-04-17 Kraftwerk Union Ag Monitoring of radioactive components esp. zirconium alloy fuel cans - below water by eddy current probe attached to manipulator arm
DE2939132C2 (en) * 1979-09-27 1985-01-24 Nukem Gmbh, 6450 Hanau Procedure for the non-destructive testing of tubes and rods using ultrasound
FR2494837A1 (en) * 1980-11-26 1982-05-28 Commissariat Energie Atomique DEVICE FOR CONTROLLING THE DIMENSIONS AND THE SPACING OF RIGID PARTS DISPOSED IN BEAM
US4376582A (en) * 1980-12-09 1983-03-15 The United States Of America As Represented By The United States Department Of Energy Optical fuel pin scanner
DE3107372C2 (en) * 1981-02-27 1985-09-05 Ntg Nukleartechnik Gmbh U. Partner, 6460 Gelnhausen Fuel assembly control device
EP0067065B1 (en) * 1981-06-10 1987-01-28 Hitachi, Ltd. Electromagnetic-acoustic measuring apparatus
FR2517104B1 (en) * 1981-11-25 1987-07-24 Commissariat Energie Atomique METHOD FOR EXAMINING A NUCLEAR REACTOR FUEL ASSEMBLY AND EXAMINATION MACHINE FOR CARRYING OUT SAID METHOD
US4449411A (en) * 1982-04-22 1984-05-22 Magnetic Analysis Corporation Magnetic and ultrasonic objects testing apparatus
DE3219938A1 (en) * 1982-05-27 1983-12-01 Bbc Reaktor Gmbh DEVICE FOR INSPECTING FUEL ELEMENTS, IN PARTICULAR FOR DETECTING DEFECTIVE FUEL RODS FROM COMPLETE FUEL ELEMENTS OF WATER-COOLED CORE REACTORS
DE3310755A1 (en) * 1983-03-24 1984-09-27 Kraftwerk Union AG, 4330 Mülheim METHOD FOR DETERMINING THE CONTENT OF A FUEL STICK
US4562738A (en) * 1984-04-04 1986-01-07 Mitsubishi Denki Kabushiki Kaisha Automatic flaw detection device
US4647422A (en) * 1985-05-08 1987-03-03 Westinghouse Electric Corp. Three-coordinate positioning apparatus for the inspection and maintenance of nuclear reactor components

Also Published As

Publication number Publication date
CA1266323A (en) 1990-02-27
ES2002721A6 (en) 1988-10-01
EP0213028A1 (en) 1987-03-04
KR940010232B1 (en) 1994-10-22
JPS6234097A (en) 1987-02-14
JPH06105312B2 (en) 1994-12-21
EP0213028B2 (en) 1994-04-20
FR2585869B1 (en) 1987-11-13
US4741878A (en) 1988-05-03
FR2585869A1 (en) 1987-02-06
DE3665374D1 (en) 1989-10-05
EP0213028B1 (en) 1989-08-30
ZA865518B (en) 1987-03-25

Similar Documents

Publication Publication Date Title
KR870002610A (en) Test method and device for control rod cluster for nuclear fuel assembly
US20060213274A1 (en) Nondestructive inspection heads for components having limited surrounding space
CN105486745A (en) Defect signal high-precision space imaging system and method based on alternating-current electromagnetic field
US4728483A (en) Apparatus for integrated fuel assembly inspection system
CN212391413U (en) Electric power X ray digital imaging unmanned aerial vehicle detection device and system
US5710378A (en) Inspection tool for detecting cracks in jet pump beams of boiling water reactor
US4663112A (en) Method for determining the contents of a fuel rod
EP0410580A2 (en) Scanning outer profiles of control rods
CN109959704B (en) Multi-directional sensitive array eddy current detection method for rail bottom of steel rail
US4645634A (en) Apparatus for measuring the pitch between adjacent rods in a nuclear fuel assembly
CN209247652U (en) Rivet surface defect on-line measuring device on a kind of big shell
CN114324430B (en) Detection device based on neutron activation
CN216622658U (en) Non-magnetic weak magnetic detection device
JP2001509259A (en) Eddy current inspection device
Förster Sensitive eddy-current testing of tubes for defects on the inner and outer surfaces
CN216926644U (en) Nondestructive imaging device capable of scanning up and down
CN104483212A (en) Corrugated carton puncture tester
CN110346739B (en) Magnetic permeability test apparatus and magnetic permeability test method
CN220139521U (en) Solar cell testing device
JPH0534490A (en) Fuel rod interval measurement and device therefor
JPH09318784A (en) Fuel rod gap measuring device for nuclear fuel assembly
Zhou et al. Binocular Vision System for Measuring the Height of Control Rod Drive Rod in Nuclear Reactor
JPS6166162A (en) Lattice board inspecting apparatus
WO2018150288A1 (en) High frequency movement recording based on multi-positioning in a single frame
CN114813929A (en) Adsorption type scanning device and detection method for eddy current detection of generator retaining ring array

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20050920

Year of fee payment: 12

EXPY Expiration of term